Coated steel refers to a special metal material with a protective coating applied to the surface of carbon steel. The special coating protects the steel from contact with oxygen, moisture, acids, and alkalis in the air and reduces rusting to extend the service life of the steel, which can last up to 7–50 years in different climatic environments.
Type of Coated Steel – Wanzhi Group
Coated steel can be divided into hot-dip galvanized coating, electro-galvanized coating, and pre-coating according to the process, and metal coating, alloy coating, and color coating according to the coating elements. Coatings protect metal materials and enhance the corrosion resistance of steel, as well as high-temperature resistance, durability, and decorative properties.
Metallic Coated Steel
Wanzhi popular metal coated steels are galvanized, aluminized, tinned, chrome plated, and so on. The surface of cold rolled steel or hot rolled steel is coated with zinc/aluminum/tin/chromium through a hot or electroplating process to improve the steel’s corrosion, abrasion, and weathering resistance.
Applications: building roofs, facade coverings, steel structures, road markings, bridge parapets, and more.
Alloy Coated Steel
Wanzhi’s popular alloy-coated steels are GL steel, AL steel, ZAM steel, etc. The alloy coating is applied on the surface of cold rolled steel or hot rolled steel to improve the corrosion resistance, heat resistance, oxidation resistance, and heat resistance of the steel in high temperature, salt spray, humidity, and heavy industry.
Applications: building roofs, facades, home appliances, automobile bodies, chemical equipment and pipelines, etc.
Color Coated Steel
Wanzhi popular color-coated steel includes Prepainted galvanized steel (PPGI), prepainted galvalume steel (PPGL), etc. An organic coating is applied on the surface of metal-coated steel or alloy-coated steel, which combines the advantages of steel, metal-coated steel, and paint layers.
Applications: roofs, walls, doors, windows, signboards, billboards, appliance housings, decorative panels, partitions, etc.
What is Coated Steel Used for?
Coated steel, especially galvanized steel and pre-galvanized steel, is widely used in construction, automotive, home appliances, furniture, transportation, etc. It is becoming one of the most popular construction and industrial materials due to its excellent corrosion resistance, high-temperature resistance, weather ability, and cost-effectiveness.
- Construction: Used in residential and commercial buildings for roofing, walling, steel structure, doors, windows, facades, ceilings, suspended ceilings, partitions, etc., to provide weathering, corrosion resistance, and appearance effects.
- Industry: Used in the production of cables, pipelines, industrial machinery, etc., to provide good corrosion protection and electrical performance.
- Agriculture: Agricultural greenhouses, greenhouses, agricultural machinery and equipment, farms, etc.. Provide fire protection, anti-corrosion, insulation, and other functions.
- Manufacturing: automobile bodies, home appliance shells, ships, etc., to provide good corrosion resistance, aesthetics, and anti-scratch performance.
- Transportation: traffic signs, bridges, billboards, and columns, providing structural stability and corrosion resistance.
- Furniture: Filing cabinets, shelves, bookshelves, etc., providing aesthetic and durable surfaces.
Why Choose Coated Steel?
- Aesthetics: Metal and painted surfaces are available in a wide range of finishes to meet the needs of different sectors.
- Corrosion resistance: Coatings provide a protective barrier against water, oxygen, chemicals, etc., preventing the steel from rusting.
- Processability: Coated steel continues the toughness, plasticity, strength, and rigidity of steel and can be further processed by slitting, bending, and stamping.
- Wide range of applications: Stable performance in indoor, outdoor, marine, chemical, high-temperature, and humid environments.
- Cost-effective: Compared with traditional materials, coated metal materials are cost-effective, easy to use, and more cost-effective.
- Easy to maintain: Coated surfaces are easy to clean and maintain.
Which is Better, Coated Steel or Color Coated Steel
Color-coated steel is a specially coated steel obtained by surface treatment of metallic or alloy-coated steel. Coated steels are suitable for applications requiring high corrosion resistance and strength, with an emphasis on durability and functionality. Color-coated steel is suitable for projects with high performance and appearance requirements and where budget is critical.
| Products | Coated steel | Color coated steel |
| Appearance | Metallic luster | Rich colors and patterns |
| Corrosion resistance | High | high |
| Durability | Good | Good |
| Application areas | Building materials and automotive components | Building materials, appliance housings, decorative materials, etc. |
| Cost | Economical | Expensive |
Where to Buy Coated Steel?
Distributor. Traders or factories? Buying from traders is fast, and saves time and effort, but the quality and price are not stable, buying from factories has favorable prices, and can be customized, but requires high transportation capacity, and generally has a longer transportation period.
Coated Steel Company and Factory
Wanzhi Group is a metal material supplier, our Coated Steel Factory is located in Binzhou City, Shandong Province, China, currently, we have obtained ISO9001 quality management system certification, and the production range includes GI, GL, PPGI, PPGL, ZA, AL, PPAL, etc., serving customers in more than 100 countries.
84 tons of Galvanized Steel Strip in the UAE
100 tons of GL and PPGL in Solomon Islands
3000 Tonnes of PPGI Coil to Libya
Factory Services
We can provide sample testing, sample design and production, and further processing services. Please feel free to leave a message via WhatsApp/Email, request samples, or visit our factory.
How to Make the Coated Steel?
We have a wide range of coated steel, you can choose the type of coating, industrial, surface treatment, deep processing, and so on. Wanzhi Group has 7 coated steel production lines, please contact us to visit our factory.
- Substrate Preparation: Prepare cold rolled steel coils and hot rolled steel coils as raw material, clean the surface, and prepare for use.
- Coating: Depending on the method of processing (hot-dip galvanizing or electro-galvanizing), the steel surface is coated with a metal/alloy coating.
- Surface Treatment: Surface treatment such as phosphating, passivation, painting, etc. can be applied.
- Cooling: Cooling and curing of the coating to make it bonded to the steel surface.
- Further Processing: Further processing such as cutting, slitting, crimping, bending, welding, stamping, etc. is carried out according to the application.
- Quality control: Check the coating thickness, adhesion, physical properties, etc.
- Packing/Transportation: Packing according to export standards.
Are you looking for a coated steel material for your project? Leave a comment telling us what type of coated steel you are looking for, or what application you are looking for, and let Wanzhi Group provide you with professional customization services and competitive pricing!